Results 191 to 200 of about 45,212 (234)

Bovine Viral Diarrhea Virus: Global Status

Veterinary Clinics of North America: Food Animal Practice, 2010
Despite the success of regional bovine viral diarrhea viruses (BVDV) eradication programs, infections remain a source of economic loss for producers. The wide variation among BVDV results in differences in genotype, biotype, virulence, and types of infections. BVDV infect a range of domestic and wild ruminants. Clinical presentation varies depending on
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Bovine Viral Diarrhea in the Neonatal Calf

Journal of the American Veterinary Medical Association, 1974
SUMMARY Bovine viral diarrhea (bvd) virus has been implicated in neonatal calf enteritis. Calves may become infected in utero or postnatally. In utero infection may terminate in abortion, cerebellar hypoplasia, birth of a weak calf, or clinically inapparent infection. Clinical signs in neonatal calves may include fever, leukopenia, nasal discharge, and
G, Lambert, A W, McClurkin, A L, Fernelius   +2 more
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Epidemiology of Bovine Viral Diarrhea Virus

Veterinary Clinics of North America: Food Animal Practice, 1995
Prevalence studies around the world show that BVDV is widespread in most cattle raising countries. There are significant differences, however, in prevalence between areas, probably the result of differences in cattle population structure and management practice.
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Bovine Viral Diarrhea Infection in Pregnant Swine

American Journal of Veterinary Research, 1980
SUMMARY Twenty pregnant gilts (5 groups of 4) were infected experimentally with 1 of 4 strains of bovine viral diarrhea virus (bvdv) administered intranasally-orally. Blood specimens were taken from the gilts on postinfection day (pid) 7 and cultured for virus.
W C, Stewart, L D, Miller, J I, Kresse, M L, Snyder   +3 more
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Characterization of bovine viral diarrhea virus proteins

Journal of Virology, 1984
Virus-specific proteins were examined in cultured cells infected with bovine viral diarrhea virus. By using antisera obtained from virus-infected animals, three major virus-specific polypeptides with molecular weights of 115,000 (115K), 80K, and 55K were observed. Minor proteins of 45,000 and 38,000 daltons were also noted.
A F, Purchio, R, Larson, M S, Collett
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Bovine viral diarrhea in a newborn calf

Journal of the American Veterinary Medical Association, 1985
Bovine viral diarrhea virus was believed to be the cause of ill-thrift since birth, resulting in death of a Holstein calf. Bovine viral diarrhea virus was isolated from Peyer's patches and mesenteric lymph nodes, but serum neutralizing antibodies were not detected.
K C, Lloyd, D D, Morris
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Immunologic Response of Bovine Fetus to Bovine Viral Diarrhea Virus

American Journal of Veterinary Research, 1973
SUMMARY Intraperitoneal inoculation of a cytopathogenic strain of bovine viral diarrhea-mucosal disease (bvd-md) virus, National Animal Disease Laboratory (NADL) strain, was performed in bovine fetuses at different stages of development to study their immunologic response to this virus. Results of morphologic, immunochemical, and serologic examinations
R K, Braun, B I, Osburn, J W, Kendrick
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The persistence of bovine viral diarrhea virus

Biologicals, 2003
Bovine viral diarrhoea virus (BVDV) has a unique capacity to cause persistent infections of foetuses exposed within the first 150 days of gestation. Preventing foetal BVDV infection will aid in improved control. This unique ability gives BVDV a selective advantage allowing continual mutation and antigenic variation within cattle populations. Therefore,
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Natural recombination in bovine viral diarrhea viruses

1994
BVDV isolates exist as two biotypes differentiated at the molecular level by production of a p80 polypeptide. Insertions consisting of host cell sequences and/or duplicated and rearranged viral sequences have been observed in the portion of the genome coding for the p80 polypeptide in some, but not all, cytopathic BVDV.
J F, Ridpath, F, Qi, S R, Bolin, E S, Berry   +3 more
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Molecular biology of bovine viral diarrhea virus

Biologicals, 2013
Bovine viral diarrhea viruses (BVDV) are arguably the most important viral pathogen of ruminants worldwide and can cause severe economic loss. Clinical symptoms of the disease caused by BVDV range from subclinical to severe acute hemorrhagic syndrome, with the severity of disease being strain dependent.
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